I took my kids to the zoo and we saw an exhibit on elephants

and I said, 'I've got a trunk-load of jokes about these guys!'

Why did the clock get sent to the principal's office?

Because it kept tocking too much!

So I was at the beach with my family, and we saw a man selling seashells. He had all sorts of shells in different shapes and sizes, and my kids were fascinated by them. The vendor told us that he had been collecting them for years and had become quite the expert

I guess you could say he was a shell of a man with a lot of knowledge

So I was at the beach with my kids, and we saw a big sandcastle that someone had built. The kids were impressed by how tall it was, and we started talking about who could have made it. I joked that it must have been a professional builder, and then I saw the sign next to it that said

it was a 'castle' in the sand, built by a 'grain' architect